Hello Lowrider, thank you for your feedback. I understand your concerns with your device battery draining faster than normal after an update. There are a few troubleshooting steps to help get the best battery performance from your device.
Clear your cache partition: power off your device, hold down the volume up and power buttons together until the logo appears, release the power button and the menu will appear, use the volume buttons to select clear cache partition and the power button to select
Reboot your device
Perform a factory data reset, please be sure to back up your device before performing the reset
